4073224021 has 16 divisors (see below), whose sum is σ = 4352140800. Its totient is φ = 3798823680.

The previous prime is 4073224019. The next prime is 4073224033. The reversal of 4073224021 is 1204223704.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 4073224021 - 2¹ = 4073224019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4073224061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 988756 + ... + 992866.

It is an arithmetic number, because the mean of its divisors is an integer number (272008800).

Almost surely, 2^4073224021 is an apocalyptic number.

It is an amenable number.

4073224021 is a deficient number, since it is larger than the sum of its proper divisors (278916779).

4073224021 is a wasteful number, since it uses less digits than its factorization.

4073224021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4644.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 4073224021 is about 63821.8146169474. The cubic root of 4073224021 is about 1597.0288638683.

Adding to 4073224021 its reverse (1204223704), we get a palindrome (5277447725).

The spelling of 4073224021 in words is "four billion, seventy-three million, two hundred twenty-four thousand, twenty-one".